[INFO] fetching crate pylon 0.2.0...
[INFO] building pylon-0.2.0 against master#ff34b919075f35a1787659e9c448a34b06bab8de for issue-85264
[INFO] extracting crate pylon 0.2.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate pylon 0.2.0 on toolchain ff34b919075f35a1787659e9c448a34b06bab8de
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate pylon 0.2.0
[INFO] finished tweaking crates.io crate pylon 0.2.0
[INFO] tweaked toml for crates.io crate pylon 0.2.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate pylon 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rgb v0.8.13
[INFO] [stderr]   Downloaded backtrace v0.3.33
[INFO] [stderr]   Downloaded aho-corasick v0.7.4
[INFO] [stderr]   Downloaded log v0.4.7
[INFO] [stderr]   Downloaded regex v1.2.0
[INFO] [stderr]   Downloaded cexpr v0.3.5
[INFO] [stderr]   Downloaded image v0.22.0
[INFO] [stderr]   Downloaded bindgen v0.50.0
[INFO] [stderr]   Downloaded regex-syntax v0.6.10
[INFO] [stderr]   Downloaded imgref v1.3.5
[INFO] [stderr]   Downloaded pylon-sys v0.1.2
[INFO] [stderr]   Downloaded clang-sys v0.28.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 28a57cf3a0d851a07feef1b621e1e0217901d3a43ce995ace1bc7b44809845db
[INFO] running `Command { std: "docker" "start" "-a" "28a57cf3a0d851a07feef1b621e1e0217901d3a43ce995ace1bc7b44809845db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "28a57cf3a0d851a07feef1b621e1e0217901d3a43ce995ace1bc7b44809845db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "28a57cf3a0d851a07feef1b621e1e0217901d3a43ce995ace1bc7b44809845db", kill_on_drop: false }`
[INFO] [stdout] 28a57cf3a0d851a07feef1b621e1e0217901d3a43ce995ace1bc7b44809845db
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b166ce138edec3f691a994ca58a738d600290a7012a241219d54c0e51e42d739
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "b166ce138edec3f691a994ca58a738d600290a7012a241219d54c0e51e42d739", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.38
[INFO] [stderr]    Compiling libc v0.2.60
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling cfg-if v0.1.9
[INFO] [stderr]    Compiling glob v0.2.11
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling lazy_static v1.3.0
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling bitflags v1.1.0
[INFO] [stderr]    Compiling ucd-util v0.1.5
[INFO] [stderr]    Compiling rustc-demangle v0.1.15
[INFO] [stderr]    Compiling log v0.4.7
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling unicode-width v0.1.5
[INFO] [stderr]    Compiling utf8-ranges v1.0.3
[INFO] [stderr]    Compiling quick-error v1.2.2
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling termcolor v1.0.5
[INFO] [stderr]    Compiling vec_map v0.8.1
[INFO] [stderr]    Compiling bindgen v0.50.0
[INFO] [stderr]    Compiling shlex v0.1.1
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]    Compiling rgb v0.8.13
[INFO] [stderr]    Compiling imgref v1.3.5
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling humantime v1.2.0
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling regex-syntax v0.6.10
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]    Compiling clang-sys v0.28.0
[INFO] [stderr]    Compiling fxhash v0.2.1
[INFO] [stderr]    Compiling backtrace-sys v0.1.31
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling aho-corasick v0.7.4
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling atty v0.2.13
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling cexpr v0.3.5
[INFO] [stderr]    Compiling backtrace v0.3.33
[INFO] [stderr]    Compiling failure v0.1.5
[INFO] [stderr]    Compiling which v2.0.1
[INFO] [stderr]    Compiling regex v1.2.0
[INFO] [stderr]    Compiling env_logger v0.6.2
[INFO] [stderr]    Compiling pylon-sys v0.1.2
[INFO] [stdout] error: environment variable `PYLON_ROOT` not defined
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/pylon-sys-0.1.2/build.rs:7:22
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let pylon_root = env!("PYLON_ROOT");
[INFO] [stdout]   |                      ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `pylon-sys`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "b166ce138edec3f691a994ca58a738d600290a7012a241219d54c0e51e42d739", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b166ce138edec3f691a994ca58a738d600290a7012a241219d54c0e51e42d739", kill_on_drop: false }`
[INFO] [stdout] b166ce138edec3f691a994ca58a738d600290a7012a241219d54c0e51e42d739
